UA9YHA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: NO01

Receiver-side FT8 activity involving UA9YHA, decoded by SO8OO in southeastern Poland. 88 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 14 UTC dates in the available aggregate history. Observed between 2026-08-01 and 2026-09-07.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 88 FT8 messages attributed to UA9YHA as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (45%), followed by 80 m (33%) and 40 m (22%). Several six-hour UTC windows tied for the largest share (55%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 29 40m · 19 20m · 40

First attributed message: 2026-08-01
Last attributed message: 2026-09-07 15:48 UTC

Observed FT8 message patterns

Attributed sample: 88 messages
Active dates: 14 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -20 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 25, strong (≥ -8 dB) 41.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with UA9YHA in decoded directed-looking exchanges:

R4DD · European Russia ×2 R5AV · European Russia ×2 RA3WY · European Russia ×2 RZ6L · European Russia ×2 RC9WC · Asiatic Russia ×2 9A5CY · Croatia BH4ECL · China G8HXE · England R3KFA · European Russia R4CHN · European Russia R6FFB · European Russia R6OAG · European Russia

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to UA9YHA

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: NO01 · 7 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 4,056 km (approx.)
Last such locator decoded: 2026-09-05 23:27 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTC	Band	UA9YHA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-30 15:07	40m	- / -10	RA3M	-13 / -	3	Partial capture
09-23 15:07	40m	- / -2	RC9WC	-12 / -	2	✓ Closing fragment
09-07 15:54	40m	- / -24	RK3YWA	0 / -	2	✓ Closing fragment
09-07 15:48	40m	-22 / -11	EW2AAA	+7 / -7	4	✓ Full exchange observed
09-07 15:44	40m	- / -14	RA3BY	+3 / -	3	✓ Closing fragment
09-07 15:44	40m	-18 / -19	SP5LST	-3 / -	6	✓ Closing observed
09-07 15:44	40m	- / -9	EW4TT	+5 / -	2	✓ Closing fragment
09-05 23:30	80m	-22 / -	R9DZ	-13 / -1	2	Partial capture
09-05 23:28	80m	- / -3	LA1FDG	+4 / -	6	Partial capture
09-05 23:27	80m	-13 / -8	PA4PA	+11 / -6	6	✓ Full exchange observed
09-05 23:27	80m	-16 / -9	RY3F	+6 / -7	4	✓ Full exchange observed
09-05 17:27	80m	- / -11	S51DI	+14 / -	11	Partial capture
09-05 16:22	40m	- / -8	R6FIV	-15 / -	2	Partial capture
09-05 16:19	40m	- / -9	RJ6ON	+9 / -	2	✓ Closing fragment
09-05 16:16	40m	- / -7	SV1MOZ	-12 / -	2	Partial capture
09-05 16:13	40m	-15 / -21	R1943OD	-3 / +1	2	Partial capture
09-04 01:03	40m	- / -19	SV2FNT	0 / -	2	✓ Closing fragment
09-04 00:57	80m	- / -7	RK8W	+8 / -	3	✓ Closing fragment
09-03 18:37	40m	- / -7	<...>	+3 / -	2	Partial capture
09-03 18:33	40m	- / -5	R6DZR	+5 / -	2	Partial capture
09-03 18:11	40m	-19 / 0	RY4D	-6 / +2	3	✓ Full exchange observed
09-03 18:00	80m	-18 / -2	RY4C	+21 / +1	3	✓ Full exchange observed
09-03 17:56	80m	- / -1	R1NI	+3 / -	4	✓ Closing fragment
09-03 17:54	80m	-9 / -	R9JBZ	- / -2	2	✓ Closing fragment
09-03 17:51	80m	-8 / -	US1EA	- / -9	4	Partial capture
09-03 17:50	80m	- / +3	UA3SCU	+4 / -	4	Partial capture
09-03 17:49	80m	- / -10	R4DD	-7 / -	2	✓ Closing fragment
09-02 18:02	80m	-13 / -11	RU5X	-7 / -20	10	✓ Full exchange observed
09-02 18:00	80m	-8 / -	R0AJQ	- / -1	2	✓ Closing fragment
09-02 17:58	80m	-8 / -15	RV6AVU	+5 / +6	5	✓ Full exchange observed
09-02 17:57	80m	- / -	RU5X	-11 / -	3	Partial capture
09-02 17:56	80m	- / -13	RC2Y	+6 / -	2	✓ Closing fragment
09-02 17:55	80m	-8 / -	RM5F	+2 / -2	2	Partial capture
09-02 17:55	80m	- / -11	R3YAR	+6 / -	2	✓ Closing fragment
09-02 17:09	40m	- / -12	UR1CCT	+11 / -	3	✓ Closing fragment
09-01 19:14	40m	- / -15	<...>	-14 / -	2	Partial capture
09-01 18:54	40m	- / -12	<...>	-9 / -	3	Partial capture
08-30 06:48	20m	- / -	F5CKQ	+2 / -	3	Partial capture
08-30 06:48	20m	- / -5	UA3NFG	-8 / -	2	✓ Closing fragment
08-30 04:26	20m	-6 / -	9A5CY	- / -12	2	Partial capture
08-30 04:22	20m	-6 / -	UB4CJS	- / -5	5	Partial capture
08-29 16:59	40m	- / -12	R3BDQ	-1 / -	3	✓ Closing fragment
08-29 16:59	40m	- / +1	RM4N	-9 / -	2	✓ Closing fragment
08-29 16:58	40m	-19 / -11	R4CHN	-12 / -13	3	Partial capture
08-28 08:46	10m	- / -	9A3K	0 / -	2	Partial capture
08-28 08:44	10m	- / -	IK2NHH	-17 / -	3	Partial capture
08-27 16:25	40m	- / -	R6LKG	-14 / -	4	Partial capture
08-27 16:25	40m	- / -15	UA3RBM	-6 / -	3	✓ Closing fragment
08-27 16:24	40m	- / -	DJ0MAB	-6 / -	3	Partial capture
08-27 16:19	40m	- / -	OZ1PGB	-5 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m

UTC    dB Audio  Message
154615  +1  806  UA9YHA RA3BY 73
154630 -18 1080  SP5LST UA9YHA RR73
154645  -6 2293  UA9YHA SP5LST R-19 (x2)
154830 -22 1080  EW2AAA UA9YHA -07
154845  +8 2485  UA9YHA EW2AAA R-11 (x3)
155400  +1 2386  UA9YHA RK3YWA R-24 (x2)
150700 -11 1975  UA9YHA RC9WC -02 (x2)
150715 -12 1617  UA9YHA RA3M -10 (x3)

80m

UTC    dB Audio  Message
232800 +12  293  UA9YHA PA4PA JO22
232800 +10  558  UA9YHA LA1FDG JP30
232815 -17 1099  RY3F UA9YHA 73
232830  +8  293  UA9YHA PA4PA JO22
232830  +6  557  UA9YHA LA1FDG JP30
232830  -2 1099  UA9YHA DO8JB JO32
232845 -13 1099  PA4PA UA9YHA -06
232900 +11  293  UA9YHA PA4PA R-08 (x2)
233030 -13 1637  UA9YHA R9DZ LO98
233030  +1  557  UA9YHA LA1FDG R-03 (x3)
233145 -22 1099  R9DZ UA9YHA -01
233200  +8  557  UA9YHA LA1FDG R-03

20m

UTC    dB Audio  Message
042300 -10 1183  UB4CJS UA9YHA -05 (x4)
042630  -4 1179  9A5CY UA9YHA -12 (x3)
064400  -6 1399  UA9YHA IK6DLK JN63
064830  -9 1395  UA9YHA UA3NFG R-05
064830  +3 2406  UA9YHA F5CKQ IN95
064900  -7 1395  UA9YHA UA3NFG 73
064900  +2 2406  UA9YHA F5CKQ IN95 (x2)
065430 -11 1398  UA9YHA G8HXE 73
065530 -13 1398  UA9YHA IV3CID JN65

10m

UTC    dB Audio  Message
084230  +4 2572  UA9YHA 9A3K JN65
084430 -20 1311  UA9YHA IK2NHH JN45 (x3)
084600 -20 2075  UA9YHA DN9WES JO30
084600  -2 2572  UA9YHA 9A3K JN65 (x2)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee